Medtronic’s Attacks On Edwards Lifescience’s Heart Valve Patents Among Reexamination Requests Filed Week of 5/2/11

Here is the latest installment of Reexamination Requests from Scott Daniels, of Reexamination Alert and Practice Center Contributor….

Medtronic has requested reexamination of two Edwards Lifesciences’ patents claiming heart valve systems for implantation, U.S. Patent Nos. 6,582,462 & 7,789,909 (see inter partes Request Nos. (3) & (4).  The two companies are long-time rivals in that market and are currently in litigation in Delaware regarding the ‘462 and ‘909 patents.

There were also requests for reexamination of patents involved in infringement disputes that we have been tracking.  One is U.S. Patent No. 7,349,012 which is one of the many patents in the litigation between MobileMedia Ideas and RIM (see inter partes Request No. (2)).  The other is U.S. Patent No. 7,917,186 owned by DexCom which is in litigation against Abbott Diabetes Care (see ex parte Request No. (6)). (more…)